Home / 728,205,163.80-1,092,685,659.30-319,302,648.60

Finding the Fourth Proportional to 728,205,163.80, 1,092,685,659.30 and 319,302,648.60

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Solution

The fourth proportional to 728,205,163.80, 1,092,685,659.30 and 319,302,648.60 is: 479,119,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,205,163.80 : 1,092,685,659.30 = 319,302,648.60 : x
  2. Step 2: Convert to fraction form
    728,205,163.80/1,092,685,659.30 = 319,302,648.60/x
  3. Step 3: Cross multiply
    728,205,163.80x = 1,092,685,659.30 × 319,302,648.60
  4. Step 4: Simplify right side
    728,205,163.80x = 348,897,425,101,727,232
  5. Step 5: Solve for x
    x = 348,897,425,101,727,232/728,205,163.80
  6. Step 6: Final answer
    x = 479,119,680.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.